Milk-can



(N M n o de W. P. MANZ am. H SWAB.

l `MILK GAN; No. 292,440. i Patented Jan. 22, 1884.

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, A 5 y -fOQmA-[TORNY NITED STATES PATENT WILLIAM E. MANZ AND CHARLES H.SWAR, or CEDAR RAPIDS, IOWA.

MILK-CAN.

SPECIFICATION forming part of Letters Patent No. 292,440, dated January22, 1884.

Application med A51-i113, Iseo. (No model.)

To a/ZZ whom zit may concern.-

Be it known that we, WILLIAM F. MANZ and CHARLES H. SWAB, of CedarRapids, in the'county of Ifinn and State of Iowa, have invented cert-ainvnew and useful Improvements in Milk-Cans, of which the following is aspecification. 4

. 'Ihe invention consists in a cover fora milkcan made with twodownwardly-extending anges or rims, the inner one of which ts inside thetop of the can, the outer one extending beyond the outside of the can.The inner ange extends some distance downward into the can, so that itslower edge shall be below the Surface of the milk contained in the can.Said lower edge is thus covered by the body of the milk, and theentrance to and passage through the milk of the air contained in thespace between the inner iiange and the inside face of the can isentirely prevented. In the center of the cover is an unobstructedopening which is surrounded by an upwardly-extending tube to permit theescape of the natural heat. of the milk and prevent the entrance ofwater at this point.

In the accompanying sheet of drawings, Figure l represents a verticalsection of the cover and an ordinary can. Fig. 2 shows a modified formof cover applied to a can, also in vertical section.

A represents the milk-can, which may beof any shape desired. The cover Bis perforated centrally, and is provided with a suitabledownwardly-depending iian ge, d, which iits inside the upper part ofthecan and forms the inner portion of the cover. This flange is surroundedby another one, D, similar in shape, to which its upper part ishermetically attached, either by a screw, as represented in Fig. 1, forgreater convenience in cleaning, or permanently, as in Fig..2, whereanother style of cover isshown. A tube or iiue, C, is tted to theopening in the cover and extends upwardly from it;

The operation of the cover will now be clearly seen. The can is ii'lledwith milk until it reaches a point above the lower edge of the insideiiange, d, which loosely fits the side of the can, so as to be easilyslid up and down therein. 'Ihe air in the space between the inner flangeand the inner face of the can is, by

, ion.

pletely sealed against the ingress of water and other air than thatalready forming the cush- As the can is placed in water, and the top ofthe cover B submerged, a small amount of air is compressed into theannular space w, between the outer ilange, D, and the outside of thecan, and between the inside of the can and the outside of the innerange, d.

. Hitherto cans have either been left open at the. top or elsecompletely covered. In an open can there is danger when the can-isplaced in water to cool the contents, that some of said water will mixwith the milk. The' objection when the can is completely sealed, hasbeen that it confined allthe animal heat, odors, and gases whichremained in the milk as it"cooled, and rendered-it disagreeable. It 'isthe purpose of this invention to render -as small as possible, if not toentirely obviate, both of these difficulties, while at the same time therapid cooling of the milk by the Water surrounding the can on the topand all sides is assured.

` InFig. 2 we have shown'a construction of milk-can such as we prefer touse. In this construction a tube, E, of taper form at its upper end isconnected to the bottom of the can, and extends upward and` above thetop of the can, and is surrounded by a flue, C, so as to leave a spacebetween the taper tube E, and the ue for the escape of the animal heatfrom the milk.v The bottom of the can is lower in the center where thet'ube E is. placed, and is provided with a suitable outlet. A

We are aware that coffee-pots have heretofore been provided with covershaving de- Ico` Having thus described our invention, what ing a centraland unobstructed opening and We claim as new, and desire to secure byLetan inner and anouter ange, whereby when ters Patent7 isthe can isplaced in water a water-seal is ob- 15 1. The milk-can cover B, providedwith an tained around the upper edge of the can and 5 inner angc 011'in17 d7 extending down within a veutilatingbpcning provided for itsupper the can, and another iiangc or rim extending parts, substantiallyas described.

downwardly outside and about the can at its ,v vf top, as shown, andhavinga centra1andunob- I structed aperture surrounded by an upwardly'-io extending ue or tube7 C, substantially as \Vitnesses:

shown and described` R. H. GILMQRE, 2. A milk-can combined with a coverhav- J. M. ST. JOHN.

